Home / 211,811.25-317,848.19-123,106.53

Finding the Fourth Proportional to 211,811.25, 317,848.19 and 123,106.53

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Solution

The fourth proportional to 211,811.25, 317,848.19 and 123,106.53 is: 184,736.11

Step by Step Solution

  1. Step 1: Write the proportion equation
    211,811.25 : 317,848.19 = 123,106.53 : x
  2. Step 2: Convert to fraction form
    211,811.25/317,848.19 = 123,106.53/x
  3. Step 3: Cross multiply
    211,811.25x = 317,848.19 × 123,106.53
  4. Step 4: Simplify right side
    211,811.25x = 39,129,187,122.15
  5. Step 5: Solve for x
    x = 39,129,187,122.15/211,811.25
  6. Step 6: Final answer
    x = 184,736.11

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Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.